{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
0
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Select your vehicle

Peterbilt 378 Serpentine Belts

Refine by:
See All

Shop Catalog

Showing 1 - 15 of 78 results
Display item:
15
30
45
Sort by:
K060455 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K060455 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060455
Vehicle Info Required to Guarantee Fit
$18.99
Product Details
Location : Alternator, Air Conditioning, Fan To AlternatorWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 46.05 in.Top Width : 0.81 in.Type : V-beltEffective Length : 45.49 in.Product Fit : Direct Fit
K040430 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K040430 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK040430
Vehicle Info Required to Guarantee Fit
$14.99
Product Details
Location : Water PumpWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 43.75 in.Top Width : 0.56 in.Type : V-beltEffective Length : 43.15 in.Product Fit : Direct Fit
6K637 Professional Series Serpentine Belt - Direct Fit, Sold individually
AC Delco®
6K637 Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC6K637
Vehicle Info Required to Guarantee Fit
$33.49
Product Details
Location : Alternator And Air Conditioning, Air Conditioning, Hub And Air ConditioningNotes : Fan belt; 64-3/8 in. belt O.C.Warranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 88932711Product Fit : Direct Fit
6K435 Professional Series Serpentine Belt - Direct Fit, Sold individually
AC Delco®
6K435 Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC6K435
Vehicle Info Required to Guarantee Fit
$34.49
Product Details
Location : Water PumpNotes : Fan belt; 44-1/8 in. belt O.C.; With 6-ribbed and V-ribbed belt driveWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 88932673Product Fit : Direct Fit
K060425HD Serpentine Belt
Gates®
K060425HD Serpentine Belt
Part Number: GATK060425HD
Vehicle Info Required to Guarantee Fit
$22.99
Product Details
Location : Fan And Air Conditioning, Air Conditioning, Hub And Water Pump, Water Pump
4060685 Serpentine Belt - Direct Fit, Sold individually
Continental®
4060685 Serpentine Belt - Direct Fit, Sold individually
Part Number: CTT4060685
Vehicle Info Required to Guarantee Fit
$34.49
Product Details
Warranty : 5 Year Continental Limited WarrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsTop Width : 0.83 in.Effective Length : 68.5 in.Rib Count : 6Product Fit : Direct Fit
K050380 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K050380 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK050380
Vehicle Info Required to Guarantee Fit
$26.99
Product Details
Location : Alternator And Air Conditioning, Alternator, Hub, Alternator And Air Conditioning, Alternator And Water PumpWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 38.71 in.Top Width : 0.67 in.Type : V-beltEffective Length : 38.14 in.Product Fit : Direct Fit
K060415 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K060415 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060415
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Location : Alternator And Air Conditioning, Hub And Water Pump, Hub And Air Conditioning, Water PumpWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 42.07 in.Top Width : 0.81 in.Type : V-beltEffective Length : 41.5 in.Product Fit : Direct Fit
5K350 OE Replacement Series Serpentine Belt - Direct Fit, Sold individually
AC Delco®
5K350 OE Replacement Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC5K350
Vehicle Info Required to Guarantee Fit
$18.49
Product Details
Location : AlternatorNotes : Fan beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Replacement SeriesReplaces OE Number : 88932578Product Fit : Direct Fit
K060637 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K060637 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060637
Vehicle Info Required to Guarantee Fit
$19.99
Product Details
Location : Accessory Drive, Water Pump To Air Conditioning, Air Conditioning - From Water Pump, Alternator And Air Conditioning, Water Pump And Air Conditioning, Hub, Alternator And Air Conditioning, Air Conditioning, Hub And Air ConditioningWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 64.34 in.Top Width : 0.81 in.Type : V-beltEffective Length : 63.78 in.Product Fit : Direct Fit
K040445 Serpentine Belt
Gates®
K040445 Serpentine Belt
Part Number: GATK040445
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Location : Power Steering, Air Conditioning, Water Pump
K060539 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K060539 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060539
Vehicle Info Required to Guarantee Fit
$20.49
Product Details
Location : Alternator And Air Conditioning, Alternator, Air Conditioning, Alternator And Water Pump, Hub And Air ConditioningWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 54.52 in.Top Width : 0.81 in.Type : V-beltEffective Length : 53.96 in.Product Fit : Direct Fit
K050340 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K050340 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK050340
Vehicle Info Required to Guarantee Fit
$22.99
Product Details
Location : Alternator, Air ConditioningWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 34.685 in.Top Width : 0.67 in.Type : V-beltEffective Length : 34.12 in.Product Fit : Direct Fit
K060425 Serpentine Belt - V-belt, Direct Fit, Sold individually
Gates®
K060425 Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060425
Vehicle Info Required to Guarantee Fit
$15.99
Product Details
Location : Fan And Air Conditioning, Air Conditioning, Hub And Water Pump, Water PumpWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 43.10 in.Top Width : 0.81 in.Type : V-beltEffective Length : 42.54 in.Product Fit : Direct Fit
6PK1153 Serpentine Belt - Direct Fit, Sold individually
Continental®
6PK1153 Serpentine Belt - Direct Fit, Sold individually
Part Number: 3Z96PK1153
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Location : Accessory Drive, Alternator And Air Conditioning, Alternator, Alternator And Power Steering, Air Conditioning And Power Steering, Air Conditioning, Alternator And Water PumpWarranty : 1-year Continental limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsEffective Length : 45.39 in.Interchange Part Number : 11288581682, 11288613707, 11288650740Replaces OE Number : 11288581682, 11288613707, 11288650740Rib Count : 6Product Fit : Direct Fit
Page 1 of 6 | Showing 1 - 15 of 78 results

Top Rated Products

Gates K040430 Serpentine Belt - V-belt, Direct Fit, Sold individually
$14.99( Review)
The right part at the right price.
Jerrell R.
VERIFIED PURCHASER

Helpful Automotive Resources

Power Steering Not Working: Why This Happens and What to Do
Power Steering Not Working: Why This Happens and What to DoThere are many potential causes for a loss of power steering. Furthermore, what potentially could go wrong depends on whether your car has hydraulic, electric or hydro-electric power steering.